150 FLOllA INDICA.
The alluvial plain through which the great western rivers
deboiiche into the Gulfs of Kach and Cambay is perfectly flat,
and in many places fertile and richly cultivated. Its seasons
are very similar to those of the Conoan, but a good deal less
rain falls. At Baroch the average fall is about 33 inches, at
Baroda it is 31 inches, at Ahmedabad only 16, and probably
considerably less to the north and west of that place, where
the plain is continuous with the desert of Marwar. There are
occasional hot winds from the north-cast and'east, and the
cold and hot seasons arc similar to those of lower Sindh.
The hilly district of Bariah, at the western extremity of
the Vindhia, participates in the general features of the lower
part of the valley of the Nerbada. The hills are densely co-
vered with forest, and very unhealthy for a considerable part
of the year, especially afttT the close of the rainy season. Tho
rain-fall is probably much #reuter than iu the. plain of G ujeral.
The district of Kach (or Catch), which is separated front
Katiwar by the Gulf of Kach, a narrow arm of the sea, from
Sindh by the most eastern branch of the Indus, and from
Murwar by the Rim (a very singular saline and more or less
marshy plain, in which the river Luiii loses itself), has a very
simitar climate to the peninsula of Gujcrat, being like that
traversed by a range of hills miming from we«t to east. It
may therefore (for our purposes) with more propriety be con-
sidered a part of Gujcrat, than to belong to Simlli, to which
physically as well as politically it is more nearly related. The.
northern districts of Iwth Kaeh and Katiwar, ]x?ing screened
from the ram-bringing wuuls by the hills, are extremely arid.
Our knowledge of the vegetation of Gujorat is entirely de-
rived from Dr. Gibson's excellent paper in the (Bombay Me-
dical Transactions/ Ou tlio open plain there is a very rapid
transition, iu advancing northward, from the Concan vegeta-
tion to that of Marwar and Sindh. Between the Tapti and
Nerbada this Is already well marked, and north of the hitter
river the Hindh vegetation of stunted Jw/V and Cff/t/wrfo
uphytta predominates The forest which skirt* thr bust* of